The Wheel is often the first advance a C-evo nation will seek, because it gives an immediate increase in the speed at which advances are discovered as soon as you have built any road on a grassland, plains, prairie, tundra, or even desert tile that is being worked.
It can usually be partly obtained in a technology exchange with the first nation you befriend if you have researched something else such as Alphabet.
The effect is doubled when you build a Superhighways system, but that will provide no benefit under your initial government, Despotism.
The Wheel also has military and movement significance in the advances that it leads to.
| Prerequisite advances: Nil |
Allows or enables: One additional trade point on every "plain terrain" tile that contains a road Has military or other value: Nil Obsoletes: Nil |
Further advances that require it: Bridge Building and Invention |